Resorcinol → 2-(4-Chlorophenyl)-1-(2,4-dihydroxyphenyl)ethanone

HRID 14494

反応式

HRID 14494 の反応式
[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][C:17](O)=[O:18])=[CH:12][CH:11]=1.B(F)(F)F.CCOCC.C([O-])(=O)C.[Na+]>>[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][C:17]([C:6]2[CH:7]=[CH:8][C:1]([OH:2])=[CH:3][C:4]=2[OH:5])=[O:18])=[CH:12][CH:11]=1

参加物

5

反応物 4

HCID 5054ResorcinolHCID 8000Boron trifluoride etherateHCID 15880(4-Chlorophenyl)acetic acidHCID 517045Sodium Acetate

生成物 1

HCID 5863662-(4-Chlorophenyl)-1-(2,4-dihydroxyphenyl)ethanone

反応条件

温度
85 °C

実験手順

A mixture of resorcinol (100 g, 0.908 mol), 4-chlorophenylacetic acid (170 g, 0.999 mol) and boron trifluoride etherate is stirred mechanically at 85° C. for 1.75 h. The dark red-brown reaction mixture is allowed to cool to room temperature and then poured slowly into aqueous sodium acetate (1 l, 30% w/v). The suspension is stirred overnight at room temperature. The orange brown precipitate is removed by filtration, dried in vacuo and then triturated with isopropyl ether/hexane (1:9) to give a yellow solid. This solid is washed with hexane and dried in vacuo to provide the title compound. A further three crops of material are obtained from the sodium acetate work-up mixture.

後処理

  1. temperatureto cool to room temperature
  2. stirringThe suspension is stirred overnight at room temperature
  3. customThe orange brown precipitate is removed by filtration
  4. customdried in vacuo
  5. customtriturated with isopropyl ether/hexane (1:9)
  6. customto give a yellow solid
  7. washThis solid is washed with hexane
  8. customdried in vacuo

出典と根拠

ORDレコード
ord-a542f2d9ff694a16a34c015a0ccdb19f
出典データセット
uspto-grants-2010_06
特許番号
US07732435B2

関連ノート

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